It makes more sense if Perin leaves Juventus because young players like him have to get more playing time he is a talented player and asset for the Italian country. I also thought the same thing because Buffon was too old to play as a goalkeeper.
I think it would be a shame if Juventus lost him for good. His price is certainly below the value that Juventus paid for him since he hasn't featured a lot in the past season. It is not likely that Buffon will play for more then another 1-2 years and losing a potential top 3 Italian goal keeper would be a shame.
I hope he just gets loaned out for the next season and comes back in 2 years.
He is the second goalkeeper this year played like 10 games and he made some errors, he is a good goalkeeper, nothing more.
Paid 15 M€, they are talking about 20+ M€ if he leaves, is always a plus, in the end, Buffon if comes he will come for 0.
He asked to leave since he knows he is a number 2 and on Juventus, there is a better goalkeeper than him atm.
About goalkeepers, Donnaruma is close to PSG.